| Type of Document |
Master's Thesis |
| Author |
Jullian, Christelle Francoise
|
| Author's Email Address |
cjullian@vt.edu |
| URN |
etd-12172003-135750 |
| Title |
Investigation of polarization switching over broad time and field domains in various ferroelectrics |
| Degree |
Master of Science |
| Department |
Materials Science and Engineering |
| Advisory Committee |
| Advisor Name |
Title |
| Viehland, Dwight D. |
Committee Chair |
| Dowling, Norman E. |
Committee Member |
| Li, Jie-Fang |
Committee Member |
|
| Keywords |
- relaxation time
- switching mechanisms
- ferroelectrics
- Polarization switching
- domain dynamics
- nucleation
|
| Date of Defense |
2003-12-10 |
| Availability |
unrestricted |
Abstract
Investigations of polarization switching over broad time and electric field domains, in various modified Pb-based perovskite ferroelectrics, were systematically performed by ferroelectric switching current transient and bipolar drive P-E responses. Studies were performed from E«Ec to E»Ec, where Ec is the coercive field These investigations have shown the presence of broad relaxation time distributions for the switching process, which can extend over several decades in order of magnitude in time, and where the distribution is strongly dependent on the applied electric field.
By performing the study of domain dynamics and polarization switching over extremely broad time domains (10-8
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| Filename |
Size |
Approximate Download Time
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56K Modem |
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CJullianThesis.pdf |
1.54 Mb |
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